page {
    box-sizing: border-box;
    min-height: 100vh;
    padding: 0 0 100rPx;
    color: #323233;
    font-size: 16Px;
    font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Helvetica,
        Segoe UI, Arial, Roboto, 'PingFang SC', 'miui', 'Hiragino Sans GB', 'Microsoft Yahei',
        sans-serif;
    background: #f7f8fa;
    -webkit-font-smoothing: antialiased;
}

.demo-margin-left {
    margin-left: 10Px;
}

.demo-margin-right {
    margin-right: 10Px;
}

.demo-margin-bottom {
    display: block;
    margin-bottom: 15Px;
}

.demo-page {
    padding: 0;
}